[][dts: mt7981: change spi-hclk for spi2]

[Description]
Change spi-hclk for spi2

[Release-log]
N/A

Change-Id: If20ba67d99c2349c45a39c7520ebfadd8c8aa2be
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5481001
1 file changed